High performance magnetic elastomer nanocomposites |
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Authors: | Sung Ho Song |
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Institution: | Division of Advanced Materials Engineering, Kongju National University, Chungnam, Republic of Korea |
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Abstract: | Elastomer nanocomposites were prepared by mixing carbon nanofiber (CNF) decorated with metal nanoparticles (CNF–Fe2O3) with latex. The Fe2O3 metal nanoparticles were decorated on the CNF by electrostatic attraction via a green and facile solution-based method. The presence of the metal nanoparticles on the surface of the CNF improved their dispersion and electric contact resistance in the elastomer matrix. Interestingly, the CNF–Fe2O3/elastomer composite exhibited improvements in both tensile strength and elongation (carbon black/elastomer), by as much as 9.7 and 28.9%, respectively, compared to an elastomer control without filler. Also, the CNF–Fe2O3/elastomer exhibited superior thermal and electrical conductivity compared with the control. In an applied magnetic field the elastomer nanocomposites showed a significant transition from dominant diamagnetism to ferromagnetism due to synergies between the Fe2O3 nanoparticles and the CNF. The elastomer nanocomposites prepared with CNF–Fe2O3 will open significant new opportunities for preparing advanced elastomer nanocomposites for future engineering applications. |
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Keywords: | Carbon nanofiber metal nanoparticles magnetite elastomer nanocomposites |
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